Car-coupling.



No. 783,985. PATBNTED PEB. 28, 1905. W. S. SCHROEDER & A. P. LINDHOLM.

CAR GOUPLING.

APPLICATION FILED JAN. 4, 1904. RENEWBD DBO. ze. 1904.

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No. 783.985'. PATENTED FEB. 28, 1905. W. s. SGHROEDER L A. P. LINDHOLM.

GAR COUPLING.

APPLIOATION FILED JAN. 4, 1904. RENBWED DB0. 28,1904.

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no. vaaeee.

iin Stains latentedfebruary 2B, 1905.

1WILLIAM S. SUHROEDER AND ANDREWT P. LlNDHOLlVl, 0F CHICAGO, ll'JLl- NOlS, ASSIG'NUHS TO CHARLES H. FERRY, 0F CHICAGO, lliL'lNUlS.

SPECIFICATION forming part of Letters Patent No. 783,985, dated February 28, 1905. Application tiled January 4,1904. Renewed December 2S, 1904. Serial No. 238,638.

To rtl/Z whom t it/.ty concern.-

Be it known that we, WILLIAM S. Sonnen- Djun and ANDREWP. LINDHOLM, citizens of the United States, residing in Chicago, in the 5 county of @ook and State of Illinois, have invented a new and useful'Improvement in Car- Couplers, of which the following is a specilication.

Our invention relates to car-couplers of the I O M. C. B. or Master Car-Builders type, havingl a forked draw-head, pivoted knuckle, and a gravity-lock consisting of a longitudinal pivotal locking-bar lying' in the chamber of the draw-bar and having a pivotal connection I5 therewith at its inner end and engaged near its outer end by a vertically-moving coupling'- pin or lifting-pin which is connected in the usual manner by a chain with the lifting-le-l ver. Coupler-s of this particular kind, hav- 2O ing a longitudinal pivotal locking-bar lying in the chamber of the draw-head, have not heretofore had nueans for setting the lock to uncouple or for throwing' the knuckle open.

The object of our invention is to provide a longitudinal pivotal locking-bar coupler of a simple, efficient, practical, and durable construction, in which the lock may be set in position for uncoupling and in which the knuckle may be automatically thrown open.

Uur invention consists in the means we elnploy to practically accomplish this object or result-that is to say, it consists, in connection with the forked draw-head and pivoted knuckle, of a longitudinal pivotal lockingbar lying in the chamber of the draw-bar and having' a slight longitudinal or forward movement to adapt it to engage a hook or shoulder on the draw-head when its forward end is .raised to the unlocking position, thus providing the coupler with a simple and eflicient loclvset.

lt further consists, in connection with the forked draw-head, pivoted knuckle, and longitudinal pivotal locking-bar lying in the chainber of the draw-bar and a coupling or lifting pin by which the forward end of the locking'- bar is raised to unlock the coupler, of a knuckle-throwing lever having' an arm adapted to engage the locking-bar as it is raised by the lifting-pin and furnished with a curved arm which engages the tail of the knuckle to throw the knuckleI open, this knuckle-throwing lever having' also a pivot-arm litting' in a hole or recess in the draw-head.

Our invention further consists in the novel construction of parts and devices and in the 5 5 novel combinations of parts and devices herein shown or described.

ln the accompanying' drawings, forming a part of this speciiication, Figure l isa central vertical section of a longitudinal pivotal loek- 6o ing-bar coupler embodying' our invention. Fig. 2 is a similar view showing the lockingbar in its raised or lifted position. Fig. 3 is a horizontal section ou line 3 3 of Fig. l. Fig.

l is a detail horizontal section on line 4 et of 65 Fig. l. Fig. 5 is a cross-section on line 5 5 of Fig. l.. Fig. 6 is a detail top or plan View of a portion of the draw-head, showing the shape of the opening' therein to receive the locking or lifting-pin. Fig. 7 isa detail per- 7o spectivc view of the' locking or lifting pin. Fig. 8 is a detail side elevation of the longitudinal pivotal locking-bar. Fig. 9 is adetail elevation showing the other side of same. Fig. l0 is a front end view of the locking-bar, 75 and Fig. .11 is a detail perspective view of the knuckle-throwing lever.

ln the drawings, A represents the drawbar; A', the forked draw-head, having the customary pivot-arm A and guard-arm As. 8o

B is the knuckle, pivoted to the draw-head by the pivot-pin C and having a tail li, which is engaged by the `long ritudinal pivotal locking-bar l), which lits and lies in the chamber c, of the draw-bar.

F is the coupling 0r lifting pin by which the outer or free end ot' the longitiulinallyextending pivotal locking-bar I) is operated or lifted to unlock the coupler or permit the knuckle to swing open, and F/ is a pivotal 9o link or chain connecting the coupler or lifting' pin with the arm F2 of the lifting-lever F, and (i is the knuckle-throwing' lever.

The draw-bar A is provided inside the chainber a on its lower web or `floor with integral saddles or ribs M, havingl elongated pivot notches or recesses f1.2 therein to receive the pivot-lugs (Z at the rear end K of the lockingbar D, the pivot notches or slots a beinglong enough to permit the necessary longitudinal movement of the locking-bar to enable the lock-set hook or ledge d at the. front end of the locking-bar to engage a corresponding lock-set hook or ledge es on the front wall e* of the draw-head when the front end of the locking-bar is raised. The elongated notch or recess e2 has lan inclined bottom a5, which aids in returning the locking-bar longitudinallyto position and also serves to slightly raise the rear end of the locking-bar when in its forward position, thus diminishing the inclination of the pivotal locking-bar when its front end is raised to the lock-set position.

rlhe locking-bar D is provided at its front end with a chamber (Z2, having an opening cl3 large enough to receive the head or shoulder fon the coupling-pin F and provided with a slot Z1 to receive the web f,which connects the head or shoulderf with the coupl ing-pin F.

The draw-bar A is provided with a guiderib a to engage the front or enlarged end of the locking-bar and keep the same in position laterally while permitting' the locking-bar to be raised as required at its front end. The pivotally and longitudinally movable lockingbar D is provided with inclined notches (Z'V, to receive and engage the head f of the locking or lifting pin F. The locking-pin F tits in an opening f in the top wall es of the drawhead and is provided with an irregularity or ribfi, which prevents its being turned wrong when it is put in place. The lock-set hooks or ledges (Z on the locking-bar D and a. on the draw -head are provided with inclined meeting' faces d and a, respectively, to insure the lock-set hooks or ledges passing each other when the locking bar is raised and properly engaging with eachother. To cause the locking-bar l) to be thrown or moved longitudinally forward as it is raised by the cou pling-pin or locking-pin F, the d raw-head is provided with a projection or fulcrum al", which causes its upper end to tilt backward and its lower end to move forward when acted upon by the lifting-lever arm F i.

rllhe knuckle-throwing lever G has a pivot arm or projection g, which fits in a suitable recess or notch au in the drawdiead, and an actuating web or arm g', which tits over the front end of the locking-bar D and is engaged vthereby when the front end of the locking-bar is sufficiently lifted, and it also has a curved or horn-shaped arm gf, which engages and follows the tail of the knuckle to throw the same open. The knuckle-throwing lever has both a rocking movementabout its pivotarm as an axis and also a swinging movement about the end of its pivot-arm as a fulcrum, thus giving the curved or horn-shaped operatingarm which engages the knuckle a combined or compound movement that causes it to properly follow the path of the tail of the knuckle in pushing or throwing the knuckle open. lVhen the flat arm g' of the knuckle-throwing lever is engaged by the front end of the locking-bar D as it nieves upward, it tends to tilt or swing the knuckle-throwing lever about the end of its pivot-arm g as a fulcrum for the lever and at the same time rock or rotate the knuckle-throwing lever about its arm g as an axis, thus giving its curved or horn-shaped operating-arm g2, which engages the tail of the knuckle, a combined o r resultant movement due to these two motions of the lever, which causes the knucklethrowing lever, though mounted above the knuckle, to keep its curved arm g2 in proper engagement with the tail of the knuckle as it is swung open thereby. To cause the flat or web arm of the knuckle-throwing lever (Jr to be properly engaged by the locking-bar D, the locking-bar is provided at its front end with a projection J7, that engages the web or fiat arm of the knuckle-throwing lever after the front end of the locking-bar is raised sufficiently to permit the side of the knuckle to move along the same. The chamber w12 in the draw-head for the arm g of the knuckle-throwing lever G has a rib al extending across it to serve as a guide, rest, and support for the knucklethrowing-lever.

`We clain l. In a car-coupler, the combination with a pivot-ed knuckle, a forked draw-head and a d raw-bar having a chamber to receive a longitudinal pivotal locking-bar, of a pivotal and longitudinally movable locking bar lying lengthwise in the chamber of the draw-bar, and provided at its front end with a lock-set hook or ledge and a coupling or lifting pin connected with the front or free end of the locking-bar, said draw-head having a lockset hook or ledge to engage the lock-set hook or ledge on the locking-bar when the same is raised and moved longitudinally forward by the lifting-pin, substantially as specified.

2. In a car-coupler, the combination with a pivoted knuckle, a forked draw-head and a draw-bar having a chamber to receive a longitudinal pivotal locking-bar, of a pivotal and longitudinally -movable locking-bar lying lengthwise in the chamber of the draw-bar, and provided at its front end with a lock-set hook or ledge and a coupling or lifting pin connected with the front or free end of the locking-bar, said draw-head having a lock-set hook or ledge to engage the lock-set hook or ledge on the locking-bar when the same is raised and moved longitudinally forward by the lifting-pin, and a knuckle-throwing leverv having a pivot-arm engaging a recess in the draw-head, an arm adapted to engage the -front end of the locking-bar when the same is raised and an operating-arm engaging the tail of the knuckle to throw the same open, substantially as specified.

IOO

IOS

LIO

IIS

reaees 3. in a car-coupler, the combination with a pivot-arm fitting in a recess in the draw-head,

pivoted knuckle, a forked draw-head and a draw-bar having a chamber to receive a longitudinal pivotal locking-bar, of a pivotal and longitudinally movable locking bar lying lengthwise in the chamber of the draw-bar, and provided at its front end with a lock-set hook or ledge and a coupling or lifting pin connected with the front or free end of the locking-bar, said draw-head having a lock-set hook or ledge to engage the lock-set hook or ledge on the locking-bar when the same is raised and moved longitudinally forward by the lifting-pin, and a knuckle-throwing lever having a pivot-arm engaging a recess in the draw-head, an arm adapted to engage the front end of the locking-bar when the same is raised and a curved operating-arm engaging' the side of the knuckle to throw the same open, said knuckle throwing lever having a rocking movement about its pivot-arm as an axis and a swinging movement about the endo'l its pivot-arm as a fulcrum, substantially as specilied.

4. ln a car-coupler, the combination with a pivoted knuckle, a forked draw-head and a draw-bar, of a pivotal locking-bar lying lengthwise in the chamber of the draw-bar, a coupling or lifting pin connecting with thefree or front end of the locking-bar, and a knucklethrowinglever mounted in the chamber of the draw-bar, and having an arm adapted to be engaged by the front end of the locking-bar when the same is raised, andan operating-arm engaging the side of the knuckle to open the same, substantially as specified.

5. ln a car-coupler, the combination with a pivoted knuckle, a forked draw-head and a draw-bar,of a pivotal locking-bar lying' lengthwise in the chamber of the draw-bar, a coupling or lifting pin connecting` with the free or front end of the locking-bar, and a knucklethrowing lever mounted in the cham ber of the draw-bar, and having an arm adapted to be engaged by the front end of the locking-bar when the same is raised, and an operating-arm I engaging the tail of the knuckle to open the same, said knuckle-throwing lever having' a substantially as specified.

6. ln a car-coupler, the combination with a pivoted knuckle, a forked draw-head and a drawbar,of a pivotal locking-bar lying' lengthwise in the chamber of the draw-bar, a coupling or lifting pin connecting' with the free or front end of the locking-bar, and a knucklethrowing lever mounted in the chamber of the draw-bar, and having' an arm adapted to be engaged by the front end of the locking-bar when the same is raised, and an operating-arm engaging the side of the knuckle to open the same, said knuckle-throwing lever having a pivot-arm fitting' in a recess in the draw-head,

said knuckle-throwing leverhavinga rocking movementabout its pivot-arm as an axis, and also a swinging movement about the end of its pivot-arm as a fulcrum, substantially as specified.

7. In a car-coupler, the combination witha knuckle, a forked draw-head and a draw-bar having' a chamber to receive a longitudinal pivotal locking-bar, of a longitudinal pivotal locking-bar lying' lengthwise in the chamber of the draw-bar and having' a pivotal connection therewith at its rear end adapted to per? mit a limited longitudinal movement of the locking-bar, and a lifting-pin connected to the front end of the locking-bar, and having a fulcrum -like bearing on the draw-head to cause the locking-bar to move slightly longitudinally `forward as it is raised, said locking'- bar and draw-head being furnished with lockset hooks or ledges, substantially as specified.

8. ln a car-coupler, the combination with a forked draw-head and a draw-bar, of a pivoted knuckle, and a pivotal loekingbar lying lengthwise in the chamber of the draw-bar, and a lifting-pin, said locking-bar and drawhead being furnished with interengaging lockset hooks or'ledges,"substantially as specified.

WILLIAM SCHROEDEP. ANDREr l?. LlNDl-IOLM. Vitnessei:

H. M. MUNDAY, l). ABRAMs. 

